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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrBitmapTextContext_DEFINED | 8 #ifndef GrBitmapTextContext_DEFINED |
9 #define GrBitmapTextContext_DEFINED | 9 #define GrBitmapTextContext_DEFINED |
10 | 10 |
11 #include "GrTextContext.h" | 11 #include "GrTextContext.h" |
12 | 12 |
13 #include "GrGeometryProcessor.h" | 13 #include "GrGeometryProcessor.h" |
14 #include "SkTHash.h" | |
15 | |
16 class GrBatchTextStrike; | |
17 class GrPipelineBuilder; | |
18 | |
19 /* | |
20 * This class implements GrTextContext using standard bitmap fonts, and can also process textblobs. | |
21 * TODO replace GrBitmapTextContext | |
22 */ | |
23 class GrBitmapTextContextB : public GrTextContext { | |
24 public: | |
25 static GrBitmapTextContextB* Create(GrContext*, SkGpuDevice*, const SkDevice Properties&); | |
26 | |
27 virtual ~GrBitmapTextContextB(); | |
28 | |
29 private: | |
30 GrBitmapTextContextB(GrContext*, SkGpuDevice*, const SkDeviceProperties&); | |
31 | |
32 bool canDraw(const SkPaint& paint, const SkMatrix& viewMatrix) SK_OVERRIDE; | |
33 | |
robertphillips
2015/03/23 19:03:12
aren't we ditching virtual on SK_OVERRIDE calls ?
| |
34 virtual void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, cons t SkPaint&, | |
35 const SkMatrix& viewMatrix, const char text[], size_ t byteLength, | |
36 SkScalar x, SkScalar y, const SkIRect& regionClipBou nds) SK_OVERRIDE; | |
37 virtual void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, c onst SkPaint&, | |
38 const SkMatrix& viewMatrix, | |
39 const char text[], size_t byteLength, | |
40 const SkScalar pos[], int scalarsPerPosition, | |
41 const SkPoint& offset, const SkIRect& regionClipB ounds) SK_OVERRIDE; | |
42 virtual void onDrawTextBlob(GrRenderTarget*, const GrClip&, const SkPaint&, | |
43 const SkMatrix& viewMatrix, const SkTextBlob*, | |
44 SkScalar x, SkScalar y, SkDrawFilter*, | |
45 const SkIRect& clipBounds) SK_OVERRIDE; | |
46 | |
47 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, | |
48 const SkIRect& regionClipBounds); | |
49 | |
50 struct BitmapTextBlob : public SkRefCnt { | |
51 struct Run : public SkRefCnt { | |
robertphillips
2015/03/23 19:03:12
init fColor here too ?
| |
52 Run() { fVertexBounds.setLargestInverted(); } | |
53 struct TextInfo { | |
54 TextInfo() : fAtlasGeneration(GrBatchAtlas::kInvalidAtlasGenerat ion) {} | |
55 SkTDArray<unsigned char> fVertices; | |
56 SkTDArray<GrGlyph::PackedID> fGlyphIDs; | |
57 uint32_t fAtlasGeneration; | |
58 }; | |
59 SkAutoTUnref<const SkData> fDescriptor; | |
60 SkAutoTUnref<SkTypeface> fTypeface; | |
61 TextInfo fInfos[kMaskFormatCount]; | |
62 SkRect fVertexBounds; | |
63 GrColor fColor; | |
64 }; | |
65 SkTArray<Run, true> fRuns; | |
66 struct BigGlyph { | |
67 BigGlyph(const SkPath& path, int vx, int vy) : fPath(path), fVx(vx), fVy(vy) {} | |
68 SkPath fPath; | |
69 int fVx; | |
70 int fVy; | |
71 }; | |
72 SkTArray<BigGlyph> fBigGlyphs; | |
73 SkTextBlob* fBlob; | |
74 SkMatrix fViewMatrix; | |
75 SkScalar fX; | |
76 SkScalar fY; | |
77 SkPaint::Style fStyle; | |
78 | |
79 static uint32_t Hash(const uint32_t& key) { | |
80 return SkChecksum::Mix(key); | |
81 } | |
82 }; | |
83 | |
84 void appendGlyph(BitmapTextBlob*, int runIndex, GrGlyph::PackedID, int left, int top, | |
85 GrFontScaler*); | |
86 void flush(BitmapTextBlob*, int i, GrPipelineBuilder*, GrMaskFormat); | |
87 void flush(BitmapTextBlob*); // automatically called by dest ructor | |
88 void finish(BitmapTextBlob*); | |
89 | |
90 void internalDrawText(BitmapTextBlob*, int runIndex, GrRenderTarget*, const GrClip&, | |
91 const GrPaint&, const SkPaint&, | |
92 const SkMatrix& viewMatrix, const char text[], size_t byteLength, | |
93 SkScalar x, SkScalar y, const SkIRect& regionClipBound s); | |
94 void internalDrawPosText(BitmapTextBlob*, int runIndex, GrRenderTarget*, con st GrClip&, | |
95 const GrPaint&, const SkPaint&, const SkMatrix& vie wMatrix, | |
96 const char text[], size_t byteLength, | |
97 const SkScalar pos[], int scalarsPerPosition, | |
98 const SkPoint& offset, const SkIRect& regionClipBou nds); | |
99 | |
100 static inline bool MustRegenerateBlob(const BitmapTextBlob&, const SkPaint&, | |
101 const SkMatrix& viewMatrix, SkScalar x , SkScalar y); | |
102 void regenerateTextBlob(BitmapTextBlob* bmp, GrRenderTarget* rt, const GrCli p& clip, | |
103 const SkPaint& skPaint, const SkMatrix& viewMatrix, | |
104 const SkTextBlob* blob, SkScalar x, SkScalar y, | |
105 SkDrawFilter* drawFilter, const SkIRect& clipBounds) ; | |
106 | |
107 GrBatchTextStrike* fStrike; | |
108 | |
109 // TODO use real cache | |
110 static void ClearCacheEntry(uint32_t key, BitmapTextBlob**); | |
111 SkTHashMap<uint32_t, BitmapTextBlob*, BitmapTextBlob::Hash> fCache; | |
112 | |
113 friend class BitmapTextBatch; | |
robertphillips
2015/03/23 19:03:12
INHERITED ?
| |
114 }; | |
14 | 115 |
15 class GrTextStrike; | 116 class GrTextStrike; |
16 | 117 |
17 /* | 118 /* |
18 * This class implements GrTextContext using standard bitmap fonts | 119 * This class implements GrTextContext using standard bitmap fonts |
19 */ | 120 */ |
20 class GrBitmapTextContext : public GrTextContext { | 121 class GrBitmapTextContext : public GrTextContext { |
21 public: | 122 public: |
22 static GrBitmapTextContext* Create(GrContext*, SkGpuDevice*, const SkDevice Properties&); | 123 static GrBitmapTextContext* Create(GrContext*, SkGpuDevice*, const SkDevice Properties&); |
23 | 124 |
(...skipping 28 matching lines...) Expand all Loading... | |
52 | 153 |
53 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, | 154 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, |
54 const SkIRect& regionClipBounds); | 155 const SkIRect& regionClipBounds); |
55 void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler* ); | 156 void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler* ); |
56 bool uploadGlyph(GrGlyph*, GrFontScaler*); | 157 bool uploadGlyph(GrGlyph*, GrFontScaler*); |
57 void flush(); // automatically called by destructor | 158 void flush(); // automatically called by destructor |
58 void finish(); | 159 void finish(); |
59 }; | 160 }; |
60 | 161 |
61 #endif | 162 #endif |
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